Business segments and geographic information - Schedule of Accounts Receivable from Individual Customers Representing Ten Percent or More of Accounts Receivable (Details) - Accounts Receivable - Customer Concentration Risk	12 Months Ended
	Jun. 28, 2024	Jun. 30, 2023
Nvidia Corporation
Schedule Of Entity Wide Accounts Receivable By Major Customers By Reporting Segments [Line Items]
Concentration of risk percentage	22.70%	14.00%
Infinera Corporation
Schedule Of Entity Wide Accounts Receivable By Major Customers By Reporting Segments [Line Items]
Concentration of risk percentage	19.30%	20.50%
Cisco Systems Inc.
Schedule Of Entity Wide Accounts Receivable By Major Customers By Reporting Segments [Line Items]
Concentration of risk percentage	12.40%
Lumentum Operations LLC
Schedule Of Entity Wide Accounts Receivable By Major Customers By Reporting Segments [Line Items]
Concentration of risk percentage		13.70%